﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace TO4Value_Type
{
    class Program
    {
        //结构体
        struct Book
        {
            public int page;
            public double price;
        }
        static void Main(string[] args)
        {
        }
        Console.WriteLine("页码{0}，价格{1}",book.page,book,price);

            //枚举
            FrontType

    }
}
